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1196728
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Western History Subject Index
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Denver Public Library
Digital Collections
Backbone mine
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Backbone mine Silver Plume district. Colorado. Discovery of vein; size. Republican . Mar. 1, 1882 p.6 c.3 0
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Western History Subject Index
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Western History Subject Index Abbreviations
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eng
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Backbone mine
, [38158]. Denver Public Library Digital Collections, accessed 12/02/2026, https://digital.denverlibrary.org/nodes/view/1196728
